When to Plant Turnip in Saint Petersburg, Florida (33708)

Location

Saint Petersburg, Florida

ZIP Code

33708

USDA Zone

10b

Last Frost

Thursday, January 15, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Thursday, December 4, 2025

Based on last frost Thursday, January 15, 2026 · Zone 10b

Pro tip: Sow Turnip directly outdoors 6 weeks before your last frost date.

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🌿 Plant Details

Scientific Name Brassica rapa

Days to Maturity 91 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 1-7 days

Ready to Plant Turnip in Saint Petersburg?

Get your seeds now so they're ready by Thursday, December 4, 2025.

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🛠️ Supplies You'll Need

🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Biennial — allow roots to overwinter and harvest seed pods in year 2 when dry.

Processing

Thresh dried stalks, winnow seeds from pod fragments.

Seed Viability

Up to 4 years when stored cool, dark, and dry.

Pro Tip

Brassica rapa — crosses with bok choy, napa cabbage, and other rapa crops. Isolate by 300 feet.

Frequently Asked Questions

When should I plant Turnip in Saint Petersburg, Florida? +

In Saint Petersburg (Zone 10b), direct sow Turnip outdoors around Thursday, December 4, 2025.

What is the last frost date for Saint Petersburg, Florida? +

The average last spring frost date for Saint Petersburg, Florida (ZIP 33708) is around Thursday, January 15, 2026. This is based on NOAA climate normals for USDA Zone 10b.

How long does Turnip take to grow? +

Turnip typically matures in about 91 days from direct sowing. In Saint Petersburg, that means you can expect harvest around Thursday, December 4, 2025 plus 91 days.

Should I start Turnip indoors or direct sow in Florida? +

Turnip does best when direct sown outdoors. In Saint Petersburg, sow directly around Thursday, December 4, 2025.

📚 More Turnip Planting Guides

🗺️

Turnip in Florida

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 10b Turnip Guide

All cities in your zone · Avg dates

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Growing Turnip in Zone 10b

Turnip (Brassica rapa) is a popular garden vegetable. In Saint Petersburg, Florida, which is in USDA Hardiness Zone 10b, you should direct sow seeds around Thursday, December 4, 2025.

Your average last frost date is Thursday, January 15, 2026. Turnip grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.